WO2014208785A1

WO2014208785A1 - Pad for touch panel and method for manufacturing same

Info

Publication number: WO2014208785A1
Application number: PCT/KR2013/005626
Authority: WO
Inventors: 박준영; 정주현; 송영진; 배상모; 이성림; 김진주
Original assignee: 주식회사 티모스; 주식회사 티메이
Priority date: 2013-06-26
Filing date: 2013-06-26
Publication date: 2014-12-31
Also published as: CN104508607A

Abstract

A method for manufacturing a pad for a touch panel comprises the steps of: forming a laminated structure comprising a translucent conductive layer, which is a conductive substance of a translucent material, on the upper surface of an insulator, and a metal coating layer on the upper surface of the translucent conductive layer; forming a touch pattern of a plurality of electrostatic electrodes and a lead wiring pattern of a bus electrode by selectively removing, from the laminated structure, the translucent conductive layer and the metal coating layer of the area excluding the translucent electrode pattern of a plurality of electrostatic electrodes, which is the touch pattern part corresponding to the window area (the area in which the screen is displayed) of the touch panel, and the wiring electrode pattern, which is connected to the edge area of the translucent electrode pattern and indicates the bus electrode; and selectively removing the metal coating layer formed on the translucent electrode pattern.

Description

Touch Panel Pads and Manufacturing Methods

The present invention relates to a method of manufacturing a touch panel, and more particularly, to a touch panel pad and a manufacturing method using a metal having a translucent property.

In general, the touch panel is an input device that can be easily used by anyone by touching a button with a finger to interactively and intuitively operate a computer. When the touch panel is integrated with a display, the touch panel is used as a touch screen. The input device to perform.

In the touch panel, a resistive method, a capacitive method, an infrared method, an ultrasonic method, and the like are used according to a method of sensing a touch, and in the future, the use of a capacitive method that is advantageous for durability and light and simple characteristics will be increased.

Such a capacitive touch panel, particularly a touch screen, has an indium tin oxide (ITO) made of a transparent conductor on a transparent insulator film such as polyethylene terephthalate (PET) or glass, and an edge of the ITO. A pad made of lead wire such as silver paste is laminated up and down by adding an adhesive layer or an insulator layer.

ITO films are known to be transparent up to about 92% (single layer) but have a relatively high resistance and are very fragile. Relatively high proportions of films are damaged during production and require expensive and time consuming test steps.

In addition, ITO film has very few suppliers capable of manufacturing the film, which causes logistic problems for users of the film.

There is a need for new materials and methods to overcome these problems and produce touch screens.

There is a metal mesh method that simultaneously forms a transparent electrode pattern and a wiring electrode pattern using only metal without using a conductive material of a transparent material such as transparent conducting oxide (TCO).

As shown in FIG. 1, the manufacturing method of the touch panel pad using the metal mesh method according to the prior art simultaneously forms the transparent electrode pattern and the wiring electrode pattern as one metal layer layer.

When the transparent electrode portion is formed in a mesh form, the surface area of the metal 10 becomes very small, so that the surface resistance value and the circuit resistance value increase. In order to solve this problem, the metal 10 should be coated with a thickness of 1000 A ° or more, which inevitably increases the opacity of the metal 10 and causes a problem that the circuit visibility of the window portion is lowered.

In order to improve the circuit visibility of the window portion, the circuit width must be formed narrower, and the circuit width must be implemented to 5 μm or less.

In the conventional manufacturing method of the pad for touch panel, since the transparent electrode pattern and the wiring electrode pattern are simultaneously formed with one metal layer layer, when the circuit width of the window portion is narrowed to improve circuit visibility, the circuit resistance value is increased and the circuit width is increased. If not narrowed, the circuit visibility becomes low.

Therefore, the conventional metal mesh method has a problem in that it is difficult to simultaneously satisfy two requirements for reducing circuit resistance while improving circuit visibility in the transparent electrode pattern and the wiring electrode pattern.

In order to solve such a problem, an object of the present invention is to provide a method for manufacturing a pad for a touch panel using a two-layer structure of a metal having a translucent property and a metal for low resistance wiring.

An object of the present invention is to provide a touch panel pad for forming a wiring electrode pattern of a touch panel with a metal coating layer and a lower layer of a semi-transparent conductive layer, and forming a semi-transparent electrode pattern with a fine metal mesh structure of the semi-transparent conductive layer. There is this.

In order to achieve the above object, a method for manufacturing a touch panel pad according to an embodiment of the present invention comprises a laminated structure including a metal coating layer on the upper surface of the semi-transparent conductive layer and the semi-transparent conductive layer of a conductive material of a semi-transparent material on the upper surface of the insulator. Forming; The touch pattern portion corresponding to the window area (the area where the screen is displayed) of the touch panel in the stacked structure is connected to the translucent electrode patterns of the plurality of electrostatic electrodes and the wiring electrode pattern representing the bus electrode connected to the edge region of the translucent electrode pattern. Selectively removing the translucent conductive layer and the metal coating layer of the excluded region to form touch patterns of the plurality of electrostatic electrodes and lead wire patterns of the bus electrodes; And selectively removing the metal coating layer formed on the translucent electrode pattern.

The touch panel pad according to the embodiment of the present invention is a touch pattern region corresponding to a window region (a region where a screen is displayed) of the touch panel, and includes a plurality of electrostatic layers including a semi-transparent conductive layer of a conductive material of a translucent material on the upper surface of the insulator. Translucent electrode pattern of the electrode; And a wiring electrode pattern connected to an edge region of each electrostatic electrode and formed of a translucent conductive layer on an upper surface of the insulator as a lead wire pattern region of the bus electrode and a metal coating layer thereon.

The present invention can improve the circuit visibility by configuring the window area (the area on which the screen is displayed) of the touch panel with a metal having translucent characteristics, thereby solving the circuit visibility problem of the metal mesh method.

According to the present invention, the metal circuit of the edge region excluding the window region of the touch panel is made of low-resistance metal, thereby having low resistance and easy signal transmission.

The present invention has the effect of reducing the process of depositing ITO, cost reduction and easy quality control.

The present invention has the effect that a selective application of 5-300 ㎛ is possible without reducing the circuit width to 5 ㎛ or less according to the visible characteristics of the translucent metal.

1 is a view illustrating a manufacturing method of a pad for a touch panel in which a wiring electrode pattern and a transparent electrode pattern are formed using a metal mesh method according to the related art.

2A and 2B are views illustrating a method of manufacturing a pad for a touch panel in which a wiring electrode pattern and a transparent electrode pattern are formed using a metal mesh method according to an exemplary embodiment of the present invention.

FIG. 3 is a diagram illustrating a form in which a top pattern and a bottom pattern are laminated in a capacitive touch panel according to an exemplary embodiment of the present invention.

4A and 4B are views illustrating a method of manufacturing a pad for a touch panel in which a wiring electrode pattern and a transparent electrode pattern are formed using a metal mesh method according to another exemplary embodiment of the present invention.

Explanation of symbols on the main parts of the drawings

110: optical insulator

120: translucent conductive layer

121: translucent electrode pattern

121a: connection between the X-axis electrodes

130: low resistance metal coating layer

131: wiring electrode pattern

140: first mask

141: second mask

200: insulation layer

210: Y-axis electrode

210a: connection between Y-axis electrodes

DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art may easily implement the present invention. As those skilled in the art would realize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. In the drawings, parts irrelevant to the description are omitted in order to clearly describe the present invention, and like reference numerals designate like parts throughout the specification.

Throughout the specification, when a part is said to "include" a certain component, it means that it can further include other components, without excluding other components unless specifically stated otherwise.

2A and 2B are views illustrating a method of manufacturing a pad for a touch panel in which a wire electrode pattern and a transparent electrode pattern are formed using a metal mesh method according to an embodiment of the present invention, and FIG. 3 is a blackout according to an embodiment of the present invention. The top pattern and the bottom pattern of the capacitive touch panel are illustrated together.

(A1), (b1), (b2) of FIG. 2A, and (c1), (c2), (d1) of FIG. 2B show the layer structure in the side of the pad for touch panels.

(A2), (b3) of FIG. 2B, and (c3), (d2) of FIG. 2B show the planar structure seen from the top of the pad for touch panels.

In the method of manufacturing a touch panel pad according to an embodiment of the present invention, after coating or depositing the translucent conductive layer 120 on the upper surface of the optical insulator 110, the low-resistance metal coating layer on the upper surface of the translucent conductive layer 120 ( 130) (a1 and (a2) of Figure 2a). Here, the semi-transparent conductive layer 120 is a term distinguished from transparent conductive oxide having high transmittance such as ITO and ZnO, but has a color, but the opposite side of the light transmitting direction has the property of transmitting light. Conductive material.

Therefore, the translucent conductive layer 120 serves to improve circuit visibility than when an opaque metal is used in forming a circuit.

Here, the optical insulator 110 represents an insulator without or under coating if necessary, the insulator is formed of an organic insulator or an inorganic insulator of a transparent material, the organic insulator is a polyimide or polyethylene terephthalate (PET) ), Polycarbonate (PC), and the inorganic insulator is made of glass.

The above-described undercoating is a coating for treating the presence or absence of ITO after the ITO pattern, that is, the optical treatment is performed on the ITO base layer so that the presence or absence of ITO is not detected by the eye during capacitive ITO film production. Means that. That is, the undercoat may in some cases raising such _{_{_{SiO 2, TiO 2 Ceo 2,}}} Nb 2 O 5 as a dry method (vapor deposition), there is also a case that a chemical treatment by a wet method.

However, it can be applied to the smart pads and smart TVs, which are large size smart devices with low visibility standards, without the under coating layer.

Here, the semi-transparent conductive layer 120 is a carbon nanotube (CNT), graphene (Graphene), chromium (Cr), an alloy of nickel (Ni) and chromium (Cr), nickel (Ni) and gold ( A conductive material of a semi-transparent material such as an alloy of Au), Ag Nano Wire (AGNW). Metals such as nickel, chromium, gold and the like may be laminated by a deposition process or coated in a wet manner.

The low resistance metal coating layer 130 is made of metal such as silver (Ag), copper (Cu), gold (Au), aluminum (Al), palladium (Pd), platinum (Pt), zinc (Zn), tin (Sn), and the like. Represents a low resistance metal material having a sheet resistance of 0.1-150 Ohm (Ω).

The low-resistance metal coating layer 130 is a conductive material having a color, but the opposite side of the light transmission direction has a characteristic that is not visible through the light transmission.

Next, by the process of primary photolithography, the semi-transparent electrode pattern 121 made of the translucent conductive layer 120 and the wiring electrode pattern 131 made of the low resistance metal coating layer 130 are formed (FIG. (B1), (b2) and (b3) of 2a).

The semi-transparent electrode pattern 121 is a metal circuit of a portion corresponding to the window area (the area where the screen is displayed) of the touch panel, and represents the user's touch pattern area.

The wiring electrode pattern 131 is connected to one end of the translucent electrode pattern 121 representing the window region of the touch panel and is a metal circuit of the edge region of the touch panel except for the window region, and the semitransparent electrode pattern 121 and the printed circuit. The bus electrode is connected to the substrate to sense and control a user's touch pattern.

In detail, the low-resistance metal coating layer 130 and the semi-transparent conductive layer 120 of the portion not corresponding to the translucent electrode pattern 121 and the wiring electrode pattern 131 are simultaneously formed using the first mask 140. To form a wiring electrode pattern 131 connected to the semi-transparent electrode pattern 121 and the semi-transparent electrode pattern 121 (the process of primary photolithography is performed by the low resistance metal coating layer 130 and the semi-transparent conductive layer 120). Secondary metal etching process). That is, the process of primary photolithography performs dry film laminating, primary exposure, primary development, metal etching (metal having translucent property and metal having low resistance property), and peeling process.

The semi-transparent electrode pattern 121 and the wiring electrode pattern 131 subjected to the first photolithography process are formed of the upper layer as the low resistance metal coating layer 130 and the lower layer as the semitransparent conductive layer 120.

In the process of primary photolithography (Wet process), the semi-transparent electrode pattern 121 includes a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions 122 and the plurality of first linear electrode portions 122. Through 124 to form a fine pattern mesh structure.

In the case of forming the semi-transparent electrode pattern 121 by performing the first photolithography process (Wet process), the mesh structure of the fine pattern directly removes the low resistance metal coating layer 130 and the semi-transparent conductive layer 120 simultaneously. There may be various embodiments (gravure offset printing, reverse printing, nano imprinting, etc.), such as patterning the structure or depositing a low resistance metal coating layer on the upper surface of the translucent conductive layer 120 and forming the mesh structure using a laser etching method. Can be.

Next, the low-resistance metal coating layer 130 of the portion corresponding to the window area (the area where the screen is displayed) of the touch panel is removed using the second mask 141. It is a secondary metal etching process of the coating layer 130, (c1), (c2) and (c3) of Figure 2b).

That is, the secondary photolithography may be performed by dry film laminating, secondary exposure, secondary development, metal etching (metal having low resistance characteristics), or peeling process.

By this process, the wiring electrode pattern 131 including the upper layer (low resistance metal coating layer 130) and the lower layer (translucent conductive layer 120) and the semi-transparent electrode pattern 121 including the translucent conductive layer 120 are formed on the optical insulating layer. Pads for touch panels are formed.

When the pad for a touch panel manufactured as described above is completed with the secondary photolithography process, as shown in FIGS. 2B and 2D, the top pattern of the sensing unit Receive and Rx and the bottom of the driving unit may be used. Bottom) pattern is laminated using an optical clear adhesive (OCA) to complete the final touch panel pad as shown in FIG. 3. Here, the sensing units (Receive, Rx) is a pattern for detecting whether the touch panel touches and the touch position as a change in the voltage value, the driver is a pattern to which the driving voltage of the touch panel is applied.

That is, FIG. 3 illustrates a state in which a top pattern and a bottom pattern are laminated using OCA.

As shown in (d1) and (d2) of FIG. 2B, the top pattern and the bottom pattern may include the wiring electrode pattern 131 of the translucent conductive layer 120 and the low resistance metal coating layer 130. In a two-layer structure, the translucent electrode pattern 121 is formed in a one-layer structure of the translucent conductive layer 120 which is a fine pattern of the metal mesh structure.

The portion corresponding to the window area (the area where the screen is displayed) of the touch panel has a property of having excellent translucent metallurgy circuit visibility.

When the transparent electrode pattern is used in a portion corresponding to the window area (the area where the screen is displayed) of the touch panel, a circuit width of 5 μm or less should be implemented to improve visibility of the window part. In this way, when the circuit width of the window portion is narrowed, visibility may be improved, but the surface resistance value and the circuit resistance value become too high.

According to the present invention, a portion corresponding to the window area (the area where the screen is displayed) of the touch panel is formed of a semi-transparent conductive layer 120, and has a circuit width of 5-300 μm thicker than a conventional circuit construction method using a transparent electrode. The circuit resistance value can be made low.

Since the wiring electrode pattern 131 uses a semi-transparent conductive layer 120 for signal transmission, a low resistance metal is additionally formed and used as a trace for wiring.

The existing metal mesh method forms a touch pattern region and a wiring electrode region at the same time only with metal, without using TCO (ITO, ZnO and other transparent oxide electrodes), so that the visibility and the circuit suitable for each function of the touch pattern region and the wiring electrode region are appropriate. There was a problem that it is difficult to implement a resistance value.

The present invention has the effect of increasing the visibility by implementing the window region of the touch panel as the translucent conductive layer 120 and lowering the circuit resistance value by implementing the wiring electrode region as the low resistance metal coating layer 130.

2A and 2B, the pad for a touch panel of the present invention is a face-up layer in which an optical insulator 110, a translucent conductive layer 120, and a low resistance metal coating layer 130 are sequentially stacked. Has a structure.

However, the present invention is not limited thereto, and the pad for a touch panel according to the present invention may include a face-down layer structure and an optical insulator in which the low resistance metal coating layer 130, the semi-transparent conductive layer 120, and the optical insulator 110 are sequentially stacked. 110, the sensing unit or the driving unit in which the semi-transparent conductive layer 120 and the low-resistance metal coating layer 130 are sequentially stacked, the low-resistance metal coating layer 130, the semi-transparent conductive layer 120, and the optical insulator 110. It is also applicable to the laminated structure of the oppositeness system which laminated | stacked the laminated sensing part or drive part with the adhesive bond layer interposed.

In addition, the touch panel pad of the present invention may be applied to a layer structure that implements a sensing unit or a driving unit of the translucent conductive layer 120 and the low resistance metal coating layer 130 under the cover glass. According to such various layer structures, the positions of the sensing unit and the driving unit may vary.

4A illustrates a side layer structure of a pad for a touch panel according to another embodiment of the present invention, and FIG. 4B illustrates a plan view of the pad for a touch panel according to another embodiment of the present invention.

As shown in FIG. 2B, the bottom pattern, which is the X-axis electrode pattern according to another embodiment of the present invention, uses the wiring electrode pattern 131 as the semi-transparent conductive layer 120 and the low resistance metal coating layer 130. As a layer structure, the semi-transparent electrode pattern 121 is formed in a single layer structure of the semi-transparent conductive layer 120 which is a fine pattern of the metal mesh structure. Here, the method of manufacturing the bottom pattern, which is the X-axis electrode pattern, is the same as that described with reference to FIGS. 2A and 2B, and thus a detailed description thereof will be omitted.

The top pattern, which is the Y-axis electrode pattern of another embodiment of the present invention, after the insulating layer 200 is formed on the connecting portions 121a between the X-axis electrodes 120 by one of printing, deposition, and coating methods. The connection portion 210a of the Y-axis electrode 210 is formed on the insulating layer 200. In this case, the insulating layer 200 prevents the connection portion 121a of the X-axis electrode 120 and the connection portion 210a of the Y-axis electrode 210 from being electrically contacted.

The top pattern, which is a Y-axis electrode pattern, is a conductive conductive layer of a fine pattern metal mesh structure. The top pattern of the metal circuit corresponding to the window area of the touch panel (the area where the screen is displayed) and the window area of the touch panel are To form a metal circuit of the edge region except. Here, one conductive conductive layer of the top pattern represents one of a low resistance metal coating layer 130 of an opaque conductive material, a transparent electrode such as ITO, and a translucent conductive layer 120.

In other words, the translucent electrode pattern 121 forms a plurality of X-axis electrostatic electrodes, which are driving units (Transfer, Tx) to which the driving voltage of the touch panel is applied, and the conductive conductive layer changes the touch value and the touch position by changing the voltage value. A plurality of second electrostatic electrodes, which are sensing units Receive and Rx, are formed.

The pad for the touch panel forms an insulating layer 200 on the connecting portion 121a between the respective X-axis electrostatic electrodes, and then laminates the connecting portion 210a between the respective Y-axis electrostatic electrodes on the insulating layer 200. Complete

As described above, the method of forming the metal mesh structure of one conductive conductive layer is well known in the art and will not be described in detail.

In addition, the method of electrically connecting the Y-axis electrode 210 may be variously configured by a known technique such as a method of forming a conductive bridge, and thus a detailed description thereof will be omitted.

The embodiments of the present invention described above are not implemented only by the apparatus and / or method, but may be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention, a recording medium on which the program is recorded, and the like. Such implementations may be readily implemented by those skilled in the art from the description of the above-described embodiments.

Although the embodiments of the present invention have been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements of those skilled in the art using the basic concepts of the present invention defined in the following claims are also provided. It belongs to the scope of rights.

According to the present invention, a low resistance metal is composed of a metal circuit in the edge region except for the window region of the touch panel, thereby having low resistance and easy signal transmission.

Claims

Forming a laminated structure including a translucent conductive layer, which is a conductive material of translucent material on an upper surface of the insulator, and a metal coating layer on the upper surface of the translucent conductive layer;

A wiring electrode, which is a touch pattern portion corresponding to a window region (a region where a screen is displayed) of the touch panel, is connected to a semi-transparent electrode pattern of a plurality of electrostatic electrodes and an edge region of the semi-transparent electrode pattern to represent a bus electrode. Selectively removing the translucent conductive layer and the metal coating layer except for the pattern to form a touch pattern of the plurality of electrostatic electrodes and a lead wire pattern of the bus electrode; And

Selectively removing the metal coating layer formed on the translucent electrode pattern

Method of manufacturing a pad for a touch panel comprising a.
The method of claim 1,

Selectively removing the translucent conductive layer and the metal coating layer,

The semi-transparent electrode pattern is formed in a fine pattern mesh structure through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions.

Method of manufacturing a pad for a touch panel comprising a.
The method of claim 1,

The semi-transparent conductive layer is a carbon nanotube (CNT), graphene (Graphene), chromium (Cr), an alloy of nickel (Ni) and chromium (Cr), an alloy of nickel (Ni) and gold (Au) The manufacturing method of the pad for a touch panel which is either a conductive material which shows the light which permeate | transmits one of the or the other side of the light transmission direction.
The method of claim 1,

The wiring electrode pattern may have the semi-transparent conductive layer stacked on the top surface of the insulator, and the metal coating layer stacked on the top surface of the semi-transparent conductive layer, and the semi-transparent electrode pattern may have a fine metal mesh structure on the top surface of the insulator. Stacking translucent conductive layers to form pads for a touch panel;

Transfer unit (Receive, Rx) for detecting whether the touch and the touch position by the change of the voltage value by using the touch panel pad, and the driving unit to which the driving voltage of the touch panel is applied using the touch panel pad , Tx); And

Manufacturing the final touch panel pad by laminating the sensing unit and the driving unit using an adhesive layer.

Method of manufacturing a pad for a touch panel comprising a.
The method of claim 1,

Manufacturing a plurality of first electrostatic electrodes, each of which is a driving unit (Transfer, Tx) to which a driving voltage of a touch panel formed of the translucent electrode pattern is applied;

Manufacturing a plurality of second electrostatic electrodes that are sensing units (Receive, Rx) for sensing whether a touch made of a conductive conductive layer, which is a conductive material, and a touch position is changed by a voltage value; And

Forming an insulating layer on the connection between each of the first electrostatic electrodes, and then stacking the connection between the respective second electrostatic electrodes on the insulating layer

Method of manufacturing a pad for a touch panel comprising a.
The method of claim 5,

The manufacturing of the plurality of second electrostatic electrodes may include:

The conductive conductive layer may include a first metal circuit of a touch region corresponding to a window region (a region where a screen is displayed) of the touch panel and a second metal circuit connected to an edge region of the first metal circuit to represent a bus electrode. The manufacturing method of the pad for touch panels formed by the metal mesh structure of a fine pattern in the layer of the.
A semi-transparent electrode pattern of a plurality of electrostatic electrodes comprising a semi-transparent conductive layer of a conductive material of semi-transparent material as a touch pattern region corresponding to a window region (a region where a screen is displayed) of the touch panel; And

A wiring electrode pattern connected to an edge region of each of the electrostatic electrodes and formed as a lead wire pattern region of a bus electrode, the translucent conductive layer on the upper surface of the insulator and a metal coating layer thereon;

Pad for touch panel comprising a.
The method of claim 7, wherein

The semi-transparent conductive layer of the semi-transparent electrode pattern has a pad for a touch panel to form a fine pattern mesh structure through a plurality of first linear electrode portions and a plurality of second linear electrode portions intersecting with the plurality of first linear electrode portions. .
The method of claim 7, wherein

The semi-transparent conductive layer is a carbon nanotube (CNT), graphene (Graphene), chromium (Cr), an alloy of nickel (Ni) and chromium (Cr), an alloy of nickel (Ni) and gold (Au) The pad for a touch panel, which is either a conductive material having a color or the opposite side of the light transmitting direction, which is visible.
The method of claim 7, wherein

A sensing unit (Receive, Rx) for sensing whether the touch and the touch position as a change in the voltage value is formed using the pad having the semi-transparent electrode pattern and the wiring electrode pattern, and the driving voltage of the touch panel using the pad The driving unit (Transfer, Tx) is applied, and the touch panel pad for laminating the sensing unit and the driving unit using an adhesive layer.
The method of claim 7, wherein

A plurality of first electrostatic electrodes representing a driver (Transfer, Tx) to which a driving voltage of a touch panel formed of the translucent electrode pattern is applied; And

It includes a plurality of second electrostatic electrode representing the sensing unit (Receive, Rx) for detecting whether the touch formed by the conductive conductive layer of the conductive material and the touch position as a change in the voltage value,

And forming an insulating layer on the connecting portion between each of the first electrostatic electrodes, and then stacking the connecting portion between the respective second electrostatic electrodes on the insulating layer.
The method of claim 11,

The conductive conductive layer may include a first metal circuit of a touch region corresponding to a window region (a region where a screen is displayed) of the touch panel and a second metal circuit connected to an edge region of the first metal circuit to represent a bus electrode. Pad for touch panel formed in a metal mesh structure of a fine pattern in the layer.
The method of claim 12,

The conductive conductive layer is a pad for a touch panel which is a conductive material of one of the metal coating layer, the transparent electrode, and the translucent conductive layer of an opaque conductive material.